Evolution and Geological Significance of Larger Benthic Foraminifera

The supplement volume of the revised brachiopod series, covering the groups added since the earlier volumes plus the anatomy, ecology and biostratigraphy of the phylum. Nearly a thousand pages with hundreds of figures.

Alwyn Williams, C. H. C. Brunton and S. J. Carlson

The Treatise volume on fossil chelicerates: eurypterids, horseshoe crabs, scorpions and spiders, with sections on sea spiders. Systematic descriptions with morphological figures for every genus.

Leif Stormer, Alexander Petrunkevitch and Joel W. Hedgpeth

The Treatise volume on bryozoans, the colonial filter feeders that build lace-like skeletons and turn up all through marine strata. Covers morphology, classification and stratigraphic range genus by genus.

Raymond C. Moore

The revised Treatise volume on graptolites, the colonial hemichordates used to date Ordovician and Silurian rocks. Includes sections on acorn worms and pterobranchs, their closest living relatives.

O. M. B. Bulman